The dome of the Chapel of the Holy Spirit is one of the most wonderful ssights in the Cathedrtal.

The Chapel of the Holy Spirit was consecrated in 1932. This coincided with the 1500^th Anniversary of the coming to Ireland of its Patron Saint – Patrick.

This event is represented by another marvellous mosaic, over the entrance to the Chapel. Here you can see Patrick in the bow of his ship as he passes the Mourne Mountains on his way to Saul holding a cross to invoke Divine aid.

In the second part of the mosaic, Patrick is depicted as a Bishop. On his right hand side, there is a fettered, blindfolded woman amid rocks and stones with a Druid alter in the background – representing Pagan Ireland. On his left, there is a figure of a woman who is free and standing in a garden of flowers, with a church and Irish round tower in the background – representing Christian Ireland.

Inside the chapel, the Altar is a replica of an early Christian- style, used in catacombs.

The windows illustrate various actions of the Holy Spirit on humankind – The Creation of Humanity, John’s vision in the isle of Patmos, The Annunciation, the Baptism of Christ, The Feast of Pentecost.

The central dome is adorned with a splendid mosaic executed in silver and gold – forming a background for four Seraphim, each holding something relevant to the Christian religion – chalice, a scroll from the Book of Life, the Cross and a lamp. The Trisagion (Holy, Holy, Holy, Lord) is inscribed on the mosaic.

All mosaic work in the Cathedral was done by the Misses Gertrude and Margaret Martin – seven years meticulous work in total.